WPP

Add wotlk classic SMSG_GUILD_INVITE_DECLINED #1045

Job	Run time
build (ubuntu-latest, Release)	1m 26s
build (ubuntu-latest, Debug)	1m 28s
build (windows-latest, Debug)	2m 7s
build (macos-14, Release)	1m 18s
build (windows-latest, Release)	3m 0s
build (macos-14, Debug)	1m 11s
	10m 30s

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